Recently, hot-rolled q345b steel steel sheets abroad are increasingly being rolled by continuous casting steel slabs, and the surface quality of the steel sheets has been continuously improved and stabilized. Hot-rolled steel sheets in coils are also commonly used.
We had a wonderful trip in Phuket Island, Thailand. At the end of 2019, in order to thank employees for their hard work for a year and enrich their lives, our company organized a pleasant trip to Phuket Island, Thailand. The tour lasted 6 days and 5 nights, and returned by plane on the evening of December 27. We took off in Zhengzhou at about 5 o'clock in the afternoon on the 22th December.
The steel plate for water conservancy and power generation is used for ring seat, motor support structure, ship lock gate and discharge chute volute of large water conservancy generating units; the representative steel grades are S500Q, S550Q, SA516, etc., which require flaw detection and have Z-direction performance requirements; the main specifications are thickness of 120mm, 180mm, 200mm, 215mm, 270mm, and the maximum width is 4400mm. The representative steel grades of wind power steel plates include Q345E, Q690E, q345b steel, etc.; the main specifications are thickness of 80mm, 100mm, 110mm, 120mm, 140mm, 160mm, 180mm, 200mm, 240mm, 260mm, 280mm, 300mm, and the width is more than 2500mm.
Fine cutting of parts, when the q345b steel thickness of parts is not greater than 8mm, the verticality of the section can not be greater than 6% of the thickness of parts;When the thickness of the part is 8-14mm, the verticality of the section should not be greater than 8% of the q345b steel thickness of the part.